Chain mortiser saw, 19th-century artwork. This type of saw is designed to cut square holes in wood, here in a plank being held in place by a clamp. This type of hole allows planks to be joined together with what is called a mortise and tenon joint. The drive belt and other parts of the saw mechanism are visible, various types of chains are on the wall, and piles of planks are on the floor. Artwork from the 17th volume (first period of 1896) of the French popular science weekly 'La Science Illustree'.
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